Installations of IDEC
Intrinsically Safe System
Type EB3P-ZN Buzzers.
The EB3P-ZN buzzer has been certified by the equipment
certification test on condition that the buzzer is used in combination
with the EB3L and EB3L-N lamp barrier or equipment that has
equivalent intrinsically safe characteristics and ratings.
All intrinsically safe systems must have “EB3P-ZN” in the part
number. The EB3P-ZN buzzer can be located in a hazardous area if
connected to EB3Land EB3L-N Lamp Barrier.
This buzzer can secure intrinsically safe performance when set
according to the instruction manual No.B-1738 and the
application requirements below.
Warning notices are used to emphasize that improper operation
may cause severe personal injury or death.
□In product security
・Do not disassemble, repair, or modify the EB3P-ZN, otherwise it
may cause loss of the product safety.
・Be sure to turnthe power off before wiring.
□Explosion-proof safety
・Install the EB3P-ZN in hazardous area and place an intrinsically
safe associated apparatus in non-hazardous area.
・Use the EB3P-ZN in zone 1 and zone2. Do not use it in zone
0.
・Be sure to use the EB3P-ZN with connecting to an
intrinsically safe associated apparatus, otherwise explosion
may result.
・The intrinsically safe associated apparatus needs to be ATEX
certified and satisfy the “Connection conditions of the IS
associated apparatus.” To use apparatuses without above
conditions may cause explosion.
・Check if the operating environment is within the specification
range before use.
Caution notices are used where inattention might cause personal
injury or damage to equipment.
□Product safety
・Be sure to use within the specification range for safety.
・Do not use the damaged product, otherwise it may cause
injury or fire hazard.
【Product type Number】
【Explosion Protection Specification】
【Installation】
Install the buzzer on the enclosure in a φ30mm hole. Fix the
product at the back with an installation ring.
Complete the installation securely so that the terminal part of
the buzzer achieves IP20 or higher.
The buzzer does not have an adjustment item.
Please make sure the buzzer is mounted on the enclosure that
satisfies the following requirements.
【Buzzer maintenance and inspection】
Turn the power of the intrinsically safe associated apparatus off
before doing maintenance and inspection for buzzers. Confirm if
the installation environment is in the specification range, the
protection degree is IP20 or over, and the product is connected to
proper safe related apparatus. Replace the products immediately
if the buzzer or the intrinsically safe associated apparatus is
defected.
【Connection conditions of the IS associated apparatus】
Please make sure the buzzer is connected to IS associated apparatus (barrier) that satisfies the following requirements.
Connection conditions of the IS
associated apparatus(barrier)
Explosion-proof construction
IS circuit maximum voltage
IS circuit maximum current
IS circuit maximum
electric power
IS circuit maximum values of
the external capacitance
IS circuit maximum values of
the external inductance
Note：1-channel in separate wiring
【Notice for wiring to the EB3L-N lamp barrier】
●Connect to the EB3L-N with 1-channel in separate wiring. 16-channel in common wiring is not available.
●The value of the external capacitance (Cw) of intrinsically safe associated circuit and the external inductance (Lw) are as follows:
Cw≦210nF （=Co：470nF- Ci：260nF）
Lw≦7.5mH （= Lo：87.5mH–Li：80mH）
Wiring diagram for the EB3L-N（except for common wiring model）and buzzers
Connect “+” of a buzzer to the terminal “P” and “-”to the terminal “N” of the EB3L-N.
Note: Be sure to wire each channel independently. Common wiring is not available.
Wiring diagram for the EB3L-N(common wiring model only) and buzzers
Connect “+” of a buzzer to the terminal “P” and “-”to the terminal “N” of the EB3L-N.
Only one buzzer can be connected to a set of eight circuits.
(Two buzzers can be connected to a 16-channel common wiring model which consists of two eight-circuit commons.)
Note: Pilot lights and illuminated switches cannot be connected to the common circuit that already has a buzzer connected.
●Specific conditions of use
・The buzzer must be mounted partly or completely within an enclosure according to EN60079-11.
・The buzzer enclosure cap is made of aluminium, ignition hazards due to impact and friction need to be avoided
according to EN60079-0 clause 8.3
・The buzzer must be connected with intrinsically safe parameters specified in the certificate.
EN60079-0:2012
EN60079-11:2012
EN60079-26:2007
45 to 85%RH (no condensation)
IP20 or higher （mounted on the enclosure）
IS terminal –unfilled part
AC500V 5mA
Ui=13.2V , Ii=14.2mA , Pi=46.9mW ,
Ci=260nF , Li=80mH
Metal: with less than 7.5% of magnesium
(steel plate, aluminum, etc.)
Plastic: required to attach a caution plate
for antistatic
Cross section of the electric wire
：0.3㎜2or over
Draw. No. B-1738-2
Apr. 01, 2015
Manufacturer.IDEC CORP.
2-6-64 Nishimiyahara Yodogawa-ku, Osaka 532-0004, Japan
EU Authorized Representative : IDEC Elektrotechnik GmbH
Heselstücken 8, 22453 Hamburg, Germany 2015.04
